InChI=1S/C17H24O8/c1-17(2,8-10(18)9-6-4-3-5-7-9)25-16-13(21)11(19)12(20)14(24-16)15(22)23/h3-7,10-14,16,18-21H,8H2,1-2H3,(H,22,23)